Transcript for Casey Kasem's Family, Friends Say Wife Won't Let Them See Him

with radio legend casey kasem at the center of a family feud. So many know him as the host of "american top 40." Now his kids are fighting with his wife, jean, saying they haven't let them see their father in months. Abc's nick watt has the latest. Daryl hall and john oates has the most popular song in the usa this week. Reporter: For nearly 40 years ON OUR TVs AND OUR RADIOS -- Now, we're up to our long-distance dedication. Reporter: Casey kasem counted down the soundtrack of our lives. This morning, his story has emingly gone from america's top 40 to family feud. Friends and family this week, protesting outside kasem's beverly hills mansion, claiming his second wife, jean, won't let them see the deejay. Until now, kasem was most famous for playing loretta on "cheers." Why do you think she's doing that? I can't even speculate. I don't know. From the outside, it looks like what we call the hollywood second wife syndrome. She may feel they're threatening the money. She may feel they're threatening the control or power. Reporter: Casey is 71 and in failing health. He's rich. His house alone is reportedly worth as much as $40 million. I don't want any of the money. We're doing just fine on our own. And it has nothing -- she can have all of it. All of it. All of it and then some. Just give us our father. Reporter: Kasem's only brother was also on that protest. All this is about, to see my brother and tell him I love him. That's all this is about. Nothing else. For once in hollywood, they're not trying to get the money. I'm willing to believe that these kids just want to see their dad. Reporter: We reached out to jean kasem for comment. No response. Kasem himself was also not available. Unfortunately, he's not able to speak for himself at this time. If he were, he would demand to see us. There's no doubt in my mind. Reporter: For "good morning america," nick watt, abc news, los angeles.

This transcript has been automatically generated and may not be 100% accurate.